Light bar



FIG. 1 is a perspective view of a light bar incorporating our newdesign;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a end elevation view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is an bottom plan view thereof.

The ornamental design for a light bar, as shown and described.